国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01J（3）
IPC B01J023/34（2）
发明人 ZHANG F（3）
公开年 2023（3）
申请年 2022（3）
专利权人

Preparing graphene quantum dot based on heterogeneous catalyst, comprises e.g. dispersing manganese dioxide particles in water, adding hydrogen peroxide and neutral graphene oxide solution into reaction solution, then adding hydrochloric acid and hydrogen peroxide, and post-processing.

WANG J, LU Y, GE M, ZHANG F, CUI D

Preparing a catalyst useful for producing 3,3',4,4'-biphenyltetracarboxylic dianhydride, comprises dispersing graphene oxide, reducing agent and palladium salt in water, heating, washing and drying.

DU J, WU J, HE H, FAN X, ZHANG G, ZHANG F, LI Y

Combined advanced oxidation of ozone/peroxymonosulfate/carbon-based catalyst involves introducing ozone into water to be treated added with peroxymonosulfate, water flows into reactor, discharging tail gas, water flows out from reactor and filtering.

HE Q, LI S, ZHANG F, MA G, LI N, QIANG C